mirror of https://github.com/python/cpython
Merged revisions 78041 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk ........ r78041 | mark.dickinson | 2010-02-06 23:11:25 +0000 (Sat, 06 Feb 2010) | 1 line testCopysign was defined twice in test_math; combine the definitions ........
This commit is contained in:
parent
004f3dcaa5
commit
3f2c03d80f
|
@ -209,31 +209,37 @@ class MathTests(unittest.TestCase):
|
|||
|
||||
if float.__getformat__("double").startswith("IEEE"):
|
||||
def testCopysign(self):
|
||||
self.assertEqual(math.copysign(1, 42), 1.0)
|
||||
self.assertEqual(math.copysign(0., 42), 0.0)
|
||||
self.assertEqual(math.copysign(1., -42), -1.0)
|
||||
self.assertEqual(math.copysign(3, 0.), 3.0)
|
||||
self.assertEqual(math.copysign(4., -0.), -4.0)
|
||||
|
||||
self.assertRaises(TypeError, math.copysign)
|
||||
# copysign should let us distinguish signs of zeros
|
||||
self.assertEquals(copysign(1., 0.), 1.)
|
||||
self.assertEquals(copysign(1., -0.), -1.)
|
||||
self.assertEquals(copysign(INF, 0.), INF)
|
||||
self.assertEquals(copysign(INF, -0.), NINF)
|
||||
self.assertEquals(copysign(NINF, 0.), INF)
|
||||
self.assertEquals(copysign(NINF, -0.), NINF)
|
||||
self.assertEquals(math.copysign(1., 0.), 1.)
|
||||
self.assertEquals(math.copysign(1., -0.), -1.)
|
||||
self.assertEquals(math.copysign(INF, 0.), INF)
|
||||
self.assertEquals(math.copysign(INF, -0.), NINF)
|
||||
self.assertEquals(math.copysign(NINF, 0.), INF)
|
||||
self.assertEquals(math.copysign(NINF, -0.), NINF)
|
||||
# and of infinities
|
||||
self.assertEquals(copysign(1., INF), 1.)
|
||||
self.assertEquals(copysign(1., NINF), -1.)
|
||||
self.assertEquals(copysign(INF, INF), INF)
|
||||
self.assertEquals(copysign(INF, NINF), NINF)
|
||||
self.assertEquals(copysign(NINF, INF), INF)
|
||||
self.assertEquals(copysign(NINF, NINF), NINF)
|
||||
self.assert_(math.isnan(copysign(NAN, 1.)))
|
||||
self.assert_(math.isnan(copysign(NAN, INF)))
|
||||
self.assert_(math.isnan(copysign(NAN, NINF)))
|
||||
self.assert_(math.isnan(copysign(NAN, NAN)))
|
||||
self.assertEquals(math.copysign(1., INF), 1.)
|
||||
self.assertEquals(math.copysign(1., NINF), -1.)
|
||||
self.assertEquals(math.copysign(INF, INF), INF)
|
||||
self.assertEquals(math.copysign(INF, NINF), NINF)
|
||||
self.assertEquals(math.copysign(NINF, INF), INF)
|
||||
self.assertEquals(math.copysign(NINF, NINF), NINF)
|
||||
self.assertTrue(math.isnan(math.copysign(NAN, 1.)))
|
||||
self.assertTrue(math.isnan(math.copysign(NAN, INF)))
|
||||
self.assertTrue(math.isnan(math.copysign(NAN, NINF)))
|
||||
self.assertTrue(math.isnan(math.copysign(NAN, NAN)))
|
||||
# copysign(INF, NAN) may be INF or it may be NINF, since
|
||||
# we don't know whether the sign bit of NAN is set on any
|
||||
# given platform.
|
||||
self.assert_(math.isinf(copysign(INF, NAN)))
|
||||
self.assertTrue(math.isinf(math.copysign(INF, NAN)))
|
||||
# similarly, copysign(2., NAN) could be 2. or -2.
|
||||
self.assertEquals(abs(copysign(2., NAN)), 2.)
|
||||
self.assertEquals(abs(math.copysign(2., NAN)), 2.)
|
||||
|
||||
def testCos(self):
|
||||
self.assertRaises(TypeError, math.cos)
|
||||
|
@ -800,13 +806,6 @@ class MathTests(unittest.TestCase):
|
|||
self.assertEquals((), math.trunc(t))
|
||||
self.assertRaises(TypeError, math.trunc, t, 0)
|
||||
|
||||
def testCopysign(self):
|
||||
self.assertEqual(math.copysign(1, 42), 1.0)
|
||||
self.assertEqual(math.copysign(0., 42), 0.0)
|
||||
self.assertEqual(math.copysign(1., -42), -1.0)
|
||||
self.assertEqual(math.copysign(3, 0.), 3.0)
|
||||
self.assertEqual(math.copysign(4., -0.), -4.0)
|
||||
|
||||
def testIsnan(self):
|
||||
self.assert_(math.isnan(float("nan")))
|
||||
self.assert_(math.isnan(float("inf")* 0.))
|
||||
|
|
Loading…
Reference in New Issue